Determine the value of y, if x is 81 . y=sqrtx-5 Answer: y=

Substitute x value: Substitute the value of x into the equation. y = sqrt(x) - 5 Since x is given as 81, we substitute 81 in place of x. y = sqrt(81) - 5Calculate square root: Calculate the square root of 81. sqrt(81) = 9Subtract 5: Subtract 5 from the square root of 81. y = 9 - 5Find y value: Perform the subtraction to find the value of y. y = 4

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Determine the value of
y, if
x is 81 .

y=sqrtx-5
Answer:
y=

Determine the value of $y$ , if $x$ is $81$ . $\newline$ $y=\sqrt{x}-5$ $\newline$ Answer: $y=$

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Math Problems

Grade 8

Solve equations with variables on both sides

Full solution

Q. Determine the value of

y

, if

x

81

\newline

y=\sqrt{x}-5

\newline

Answer:

y=

Substitute x value: Substitute the value of x into the equation. $\newline$ y = \sqrt{x} - $5$ $\newline$ Since x is given as $81$ , we substitute $81$ in place of x. $\newline$ y = \sqrt{ $81$ } - $5$
Calculate square root: Calculate the square root of $81$ . $\sqrt{81} = 9$
Subtract $5$ : Subtract $5$ from the square root of $81$ . $\newline$ $y = 9 - 5$
Find y value: Perform the subtraction to find the value of y. $\newline$ $y = 4$